Improvement in machines for coiling bed-springs



MATTHEW VAN vLEcK, `or ALBANY, NEW YORK.,

Letters. Patent, No. 112,868, dated March'l, 1871.

IMPROVEMENT IN MACHINES FOR COILING BED-SPRINGS.

The Schedule referred t in these Letten Patent and making part vof the lame.

To all whom a't may concern Be it known that I, MATTHEW VAN Vmsox, of Albany, in thecounty of Albany and State of New York, have invented a new and improved Machine for Ceiling Double Bed-Springs; and I do hereby declare that the following is-a fnll,'clea.r, and exact description thereof', which will enableothers skilledy in the art to make and use the same, reference being had `to the accompanyingvdrawing forming part vof this specilicatiomin which- `i,, ,rnre 1 represents a side elevation, partly in section, of my machine. v

Figure 2 is a plan or top view of the same.

Figure 3 is a detail perspective View of the spring made by the machine.

Similar letters of reference indicate corresponding parts.

This invention relates toa new machine for making the kind of double-spiral spring which is mentioned inthe Letters Patent of the United States, granted to Matthew and Lawrence Van -Vleck on the 26th day of April, 1870, numbered 102,337, or springs of substantially the same style.

The vinvention consists inthe application of single or doublelwinding cones to two separate slides, and a fixed projection on the .stationary frame, said cones revolving in opposite directions to produce the right-v and'left cones or coils of the spring from one wire. r A in the .drawing represents the table/or main frame of my improved spring-ceiling machine.

It is supported on standards or legs of suitablev kind, and sustains two slides B which can be moved longitudinally on the table toward or away'from each other. l

The table A has `a ltmgitndinal slot or groove for the recept-ion of the shanks or lower parts of the slides B.

Weights C, springs, or equi-valent devices are connected with the slides B, and tend to draw the same` aparttoward the ends of the table.

From the middle of the table projects a xd arm,

a, from which the two slides B are tobe at all times equally far apart.

VIn each slide B is hung an arbor, b; carrying a. cone, c, and connected, by means of gearing d or otherwisc, with a crank-handle, e, or other rotary mechanism.

When the-two slides are at the ends of the table,

the wire to be coiled is secured with its ends to the small ends of the two cones c o, and laid over the' arm a, so as to be stretched in the said position.

The cones are now revolved in opposite directions, so as to gradually wind up the wire and canse the slides to move toward the arm a until finally the two cones are covered with the requisite' coil.

- The middle portion of the wire laid over the arm a will then form the connecting-portion f of the two coils, as in fig. 3, the coils g g being on the lcones. Thus by one single process both coils are formed.

By forming a cone, c, at either end of each arbor b, two pairs of double springs can at once be formed, in which case two stops, c, must be provided.

Spring-catches or snaps h may be applied to the table A to lock the slides B, when the same are nearest together and the coils completed.

Having thus described my invention,

I claim as new and desire to secure by Letters Patent- In combination withy the slotted table or its equivalent, the slides B and mechanism to draw them asunder, the cones c and mechanism for rotating the same, and the stop or support @substantially as described. M. VAN VLEOK.

`Witnesses:

JOHN A. LAwLnSS, W. D. MonANe. 

